Home / 5,636.36-7,778.08-3,118.42

Finding the Fourth Proportional to 5,636.36, 7,778.08 and 3,118.42

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Solution

The fourth proportional to 5,636.36, 7,778.08 and 3,118.42 is: 4,303.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.36 : 7,778.08 = 3,118.42 : x
  2. Step 2: Convert to fraction form
    5,636.36/7,778.08 = 3,118.42/x
  3. Step 3: Cross multiply
    5,636.36x = 7,778.08 × 3,118.42
  4. Step 4: Simplify right side
    5,636.36x = 24,255,304.64
  5. Step 5: Solve for x
    x = 24,255,304.64/5,636.36
  6. Step 6: Final answer
    x = 4,303.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.